[PATCH 0/4] migration: New postcopy state, and some cleanups

[Peter Xu <peterx@redhat.com>]

The major goal of this patchset is patch 4, which introduced a new postcopy
state so that we will send an event in postcopy reconnect failures that
Libvirt would prefer to have.  There's more information for that issue in
the commit message alone.

Patch 1-2 are cleanups that are not directly relevant but I found/stored
that could be good to have.  I made it simple by putting them together in
one thread to make patch management easier, but I can send them separately
when necessary.

Patch 3 is also a cleanup, but will be needed for patch 4 as dependency.

Comments welcomed, thanks.

CI: https://gitlab.com/peterx/qemu/-/pipelines/1328309702
    (msys2-64bit is failing, but doesn't look relevant)

Peter Xu (4):
  migration/multifd: Avoid the final FLUSH in complete()
  migration: Rename thread debug names
  migration: Use MigrationStatus instead of int
  migration/postcopy: Add postcopy-recover-setup phase

 qapi/migration.json      |  4 ++
 migration/migration.h    |  9 +++--
 migration/postcopy-ram.h |  3 ++
 migration/colo.c         |  2 +-
 migration/migration.c    | 85 ++++++++++++++++++++++++++++++++--------
 migration/multifd.c      |  6 +--
 migration/postcopy-ram.c | 10 ++++-
 migration/ram.c          |  4 --
 migration/savevm.c       |  6 +--
 9 files changed, 95 insertions(+), 34 deletions(-)

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2.45.0